Umbraco allows possible Admin-level access to backoffice without Auth under rare conditions
CVE-2023-37267

7.5HIGH

Key Information:

Vendor

Umbraco

Status
Umbraco-cms
Vendor
CVE Published:
13 July 2023

What is CVE-2023-37267?

The Umbraco ASP.NET CMS has a vulnerability that, under specific rare conditions, may allow unauthorized users to gain admin-level permissions following a system restart. This issue potentially compromises the security of the CMS, making it critical for admins to update to the patched versions 10.6.1, 11.4.2, and 12.0.1. Immediate action is advised to protect your systems.

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Deploy the Patch

Affected Version(s)

Umbraco-CMS >= 9.0.0, < 10.6.1 < 9.0.0, 10.6.1

Umbraco-CMS >= 11.0.0, < 11.4.2 < 11.0.0, 11.4.2

Umbraco-CMS = 12.0.0 = 12.0.0

References

https://github.com/umbraco/Umbraco-CMS/security/advisorie...
x_refsource_CONFIRM
https://github.com/umbraco/Umbraco-CMS/commit/1f26f2c6f34...
x_refsource_MISC
https://github.com/umbraco/Umbraco-CMS/commit/20a4e475c8d...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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